7 papers
Logarithmic negative tangency and root stacks
Luca Battistella, Navid Nabijou, Dhruv Ranganathan
We study stable maps to normal crossings pairs with possibly negative tangency orders. There are two independent models: punctured Gromov-Witten theory of pairs and orbifold Gromov…
Euler characteristics of higher rank double ramification loci in genus one
Luca Battistella, Navid Nabijou
Double ramification loci parametrise marked curves where a weighted sum of the markings is linearly trivial; higher-rank loci are obtained by imposing several such conditions simul…
Counting point configurations in projective space
Alex Fink, Navid Nabijou, Rob Silversmith
We investigate the enumerative geometry of point configurations in projective space. We define "projective configuration counts": these enumerate configurations of points in projec…
Chow theory of toric variety bundles
Francesca Carocci, Leonid Monin, Navid Nabijou
We describe the Chow homology and cohomology of toric variety bundles, with no restrictions on the singularities of the fibre. We present the ordinary and equivariant homologies as…
Tropical expansions and toric variety bundles
Francesca Carocci, Navid Nabijou
A tropical expansion is a degeneration of a toroidal embedding, induced by a polyhedral subdivision of its tropicalisation. Each irreducible component of a tropical expansion admit…
Gromov-Witten theory of bicyclic pairs
Michel van Garrel, Navid Nabijou, Yannik Schuler
A bicyclic pair is a smooth surface equipped with a pair of smooth divisors intersecting in two reduced points. Resolutions of self-nodal curves constitute an important special cas…